On Sun, 1 Dec 2013 20:58:34 -0800 (PST)
Shiva Narayanaswamy <[email protected]> wrote:
> I want to implement a scenario where I can mix and match multiple
> roles on any managed node. The particular roles played by a node are
> available as facts (role1=webserver, role2=appserver etc )In
> development all the roles will be played by one host, and in
> production a server might play only one role.
>
> I was hoping there will be some way I can implement this in hiera.
> Any clues or pointers would be much appreciated.
I've already had to do something similar, and did it the following way :
* A single "role=" fact/variable.
* Conditionals such as "if "<rolename>" in $role { ..."
It's not the prettiest way, but since facts can't be arrays, it's the
best I could think of. My role names are all 3 letter long and unique,
meaning that no role name contains another (role "app" and "app1"
would cause "app" to be found in "app1).
In hiera (or from a fact) I just need to have a role string :
role: 'role1,role2,role3'
Depending on your environment, it might also make sense to go for
completely separate variables for each role, such as:
webserver: true
appserver: true
With matching facts which exist or don't exist.
HTH,
Matthias
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